If I wanted furniture I could bolt together, take apart, and put together again, then I would drill the holes, without a fancy (read very expensive :crying: ) jig, then use bolts, washers, and nuts.
The link is now dead but assuming that it is the "WOODPECKERS UNIVERSAL CROSS DOWEL JIG" my comment is that it is too restrictive and much more expensive than needed.Here is web page any comment.
https://www.woodpeck.com/universal-...59287067&_bta_c=06wo5ns3z30hfrufvw9p41ocr9qj6